# Test Vectors

The Test Vector feature allows you to verify your circuits by running automated tests defined in text files. This feature supports both combinational and sequential circuit testing, making it ideal for verifying complex digital logic designs including state machines, counters, and memory components.

The Test Vector module runs a separate copy of the circuit simulator, so it does not interfere with the simulation in the project window. Any incorrect outputs will be flagged in red, and you can hover the mouse over the red box to see what the output should have been according to the test vector.

> Subsections:
> Test Vector Window
> Test Vector File Format
> Special Values
> Sequential Testing
> Command Line Usage
> Tips and Best Practices

Next: Test Vector Window.